ZIP guide — public records, sourced

78663: Round Mountain, TX

The public records behind ZIP 78663 — the registry count for the ZIP itself, and the FBI-reported crime record for Blanco County, its county. Every figure sourced and dated. For a specific home, run the free preview: the flood determination and the full record check happen at the address, live.

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3
Registrants in ZIP 78663
1 in 280
Residents per registrant
99
Blanco County offenses reported, 2024
7.41
Blanco County crimes per 1,000 / yr

Registered sex offenders in 78663

3 registrants are listed for ZIP 78663 — a ratio of 1 per 280 residents.

County baseline — Blanco County overall: 1 per 491 residents.

Counts describe density, not danger by themselves; proximity to a specific address is what matters. This page publishes the count only — never names, photos, or registrant addresses. For the address-level check, search the official registry: the Texas Public Sex Offender Website / Sex Offender Registry (Texas Department of Public Safety), or every state at once through the federal NSOPW site.

One honest caveat: this count comes from a compilation of the state registry’s published data. Where a registry also lists work or school locations, a compilation count can read higher than a residence-only official count — the official search above is the deciding check for a specific address.

Source: City-Data compilation of Texas state registry data — count as of 2026-11-04. Compilation pulled 2026-11-04.

Compilation page for this ZIP: https://www.city-data.com/soz/soz-78663.html.

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Reported crime in Blanco County — FBI 2024

FBI crime data is collected by law-enforcement agency, not by ZIP — so this is the record for Blanco County, the county ZIP 78663 belongs to, labeled at county grain. ZIP 78663 spans 4 counties. Blanco County is its primary county — 93% of the ZIP’s land area (Census Bureau 2020 ZCTA-to-county file), so the county figures below are Blanco County’s.

Agencies in Blanco County reported 99 offenses to the FBI in 2024 — 28 violent and 71 property — a reported-crime rate of 7.41 per 1,000 residents (violent 209.6 and property 531.5 per 100,000).

Offense (2024, reported)Count
Murder0
Rape2
Robbery1
Aggravated assault25
Burglary20
Larceny-theft42
Motor vehicle theft9
Arson0

Coverage: 3 of 3 law-enforcement agencies assigned to this county reported at least one month of 2024 offense data to the FBI; 3 reported all 12 months. Counts are reported offenses only (FBI Return A / Arson master files), assigned whole to each agency's primary county; they are not adjusted for non-reporting agencies.

Source: FBI Crime Data Explorer (CDE) — UCR master files: Return A (Offenses Known and Clearances by Arrest) and Arson, data year 2024 — pulled 2026-11-04. These are offenses reported to law enforcement, not convictions, and not a verdict on any street or address.

Blanco County and Texas context

Blanco County is the records county for ZIP 78663. The county seat is Johnson City. Its 2024 Census Bureau population estimate is 13,358. The files that decide a purchase — assessor, recorder, permits, flood — live at the county and state level:

Flood risk is decided at the structure, not the ZIP — two houses on the same street can sit in different FEMA zones. The free preview at the top of this page runs the official FEMA determination at the exact address, live.

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Sources for this page

  • Sex-offender registry: City-Data compilation of Texas state registry data (count as of 2026-11-04); official search: Texas Public Sex Offender Website / Sex Offender Registry, Texas Department of Public Safety.
  • Crime: FBI Crime Data Explorer (CDE) UCR master files — Return A and Arson, data year 2024, pulled 2026-11-04; offenses assigned to each reporting agency’s primary county.
  • ZIP-to-county: U.S. Census Bureau, 2020 Census ZCTA5-to-County relationship file, pulled 2026-11-04; primary county = largest share of the ZCTA’s land area.
  • County context: population — U.S. Census Bureau 2024 Population Estimates Program; county seat — Wikidata (CC0), checked 2026-11-04.

Figures are shown as published by their sources on the dates noted and are refreshed as the underlying data updates. This page is research, not legal or financial advice.